1 /**
2  * Copyright (C) 2019 IBM Corporation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "nmi_interface.hpp"
18 
19 #include <libpdbg.h>
20 
21 #include <phosphor-logging/elog-errors.hpp>
22 #include <phosphor-logging/elog.hpp>
23 #include <xyz/openbmc_project/Common/error.hpp>
24 
25 namespace openpower
26 {
27 namespace proc
28 {
29 
30 NMI::NMI(sdbusplus::bus::bus& bus, const char* path) :
31     Interface(bus, path), bus(bus), objectPath(path)
32 {
33 }
34 
35 void NMI::nMI()
36 {
37     using namespace phosphor::logging;
38     using InternalFailure =
39         sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
40 
41     struct pdbg_target* target;
42 
43     pdbg_for_each_class_target("thread", target)
44     {
45         if (pdbg_target_probe(target) != PDBG_TARGET_ENABLED)
46             continue;
47 
48         if (thread_stop(target) < 0 || !thread_status(target).quiesced)
49         {
50             log<level::ERR>("Failed to stop all threads");
51             report<InternalFailure>();
52             return;
53         }
54     }
55 
56     if (thread_sreset_all() < 0)
57     {
58         log<level::ERR>("Failed to sreset all threads");
59         report<InternalFailure>();
60     }
61 }
62 } // namespace proc
63 } // namespace openpower
64